Merck

221465

Sigma-Aldrich

氢氧化钠

ACS reagent, ≥97.0%, pellets

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别名:
‘苛性钠’
线性分子式:
NaOH
CAS号:
分子量:
40.00
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent

质量水平

Agency

suitable for DIN 38407-42
suitable for EPA 1621
suitable for EPA 533
suitable for EPA 8327
suitable for EPA OTM-45
suitable for SM 4500 - NH3

蒸汽密度

>1 (vs air)

蒸汽压

<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)

检测方案

≥97.0%

形式

pellets

technique(s)

cell culture | mammalian: suitable
titration: suitable

杂质

≤0.001% N compounds
≤0.02% NH4OH ppt.
≤1.0% Na2CO3

mp

318 °C (lit.)

溶解性

water: soluble 1,260 g/L at 20 °C

密度

2.13 g/cm3 at 20 °C

痕量阴离子

chloride (Cl-): ≤0.005%
phosphate (PO43-): ≤0.001%
sulfate (SO42-): ≤0.003%

痕量阳离子

Fe: ≤0.001%
Hg: ≤0.1 ppm
K: ≤0.02%
Ni: ≤0.001%
heavy metals (as Ag): ≤0.002%

SMILES string

[OH-].[Na+]

InChI

1S/Na.H2O/h;1H2/q+1;/p-1

InChI key

HEMHJVSKTPXQMS-UHFFFAOYSA-M

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此商品
71690655104306576
Sodium hydroxide ACS reagent, &#8805;97.0%, pellets

Sigma-Aldrich

221465

氢氧化钠

-
Sodium hydroxide puriss. p.a., ACS reagent, K &#8804;0.02%, &#8805;98.0% (T), pellets

Sigma-Aldrich

71690

氢氧化钠

-
Sodium hydroxide reagent grade, 97%, powder

Sigma-Aldrich

655104

氢氧化钠

Essential Grade
Sodium hydroxide pellets, semiconductor grade, 99.99% trace metals basis

Sigma-Aldrich

306576

氢氧化钠

-
agency

suitable for DIN 38407-42, suitable for EPA 1621, suitable for EPA 533, suitable for EPA 8327, suitable for EPA OTM-45, suitable for SM 4500 - NH3

agency

-

agency

-

agency

-

vapor density

>1 (vs air)

vapor density

>1 (vs air)

vapor density

>1 (vs air)

vapor density

>1 (vs air)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

vapor pressure

<18 mmHg ( 20 °C), 3 mmHg ( 37 °C)

assay

≥97.0%

assay

≥98.0% (T)

assay

97%

assay

99.99% trace metals basis

form

pellets

form

pellets

form

powder

form

pellets

一般描述

氢氧化钠(NaOH)又称苛性碱,是一种水溶性无机碱,具有广泛的工业应用,如滴定、溶出度测定以及去除吸气瓶中的酸性气体等。它参与由金/木炭或金/石墨催化的甘油氧化。它参与无溶剂醛缩合反应。

应用

氢氧化钠可用作滴定法、溶出度测定的碱,调节pH值和去除吸气瓶中的酸性气体。
它可用于以下过程:
  • 在存在金催化剂的情况下将甘油转化为甘油酸。
  • 钯催化乙烯基烷氧基硅烷与芳基溴或氯化物的交叉偶联反应,以生成苯乙烯。
氢氧化钠(NaOH)应用于以下过程:
  • 制备用于蛋白质交联技术的3,3′-二(磺胺)-4,4′-二(氯乙酰氨基)偶氮苯钠(BSBCA)
  • 制备电解液,以研究电解液组成对电化学还原法将CO2化为CO的影响。
  • 制备用于保存睾丸生殖细胞三维染色质结构的三维(3D)载玻片法的CSK(细胞骨架)缓冲液。
  • ZSMs (zeolite socony mobils)的合成。
氢氧化钠,可用滴定法测定胶体二氧化硅的比表面积。它还可用于硼氢化钠的直接氧化,可用循环伏安法、线性伏安法、计时安培法和计时电位法检测。可用于制备柠檬酸缓冲液和硼酸缓冲液。它可用于合成:
  • 烷基芳基氨基磺酸盐
  • (3 -[4-辛基苯氧基乙氧基乙氧基]二甲基氨基丙烷磺酸盐(XOSB)
  • 三磺甜菜碱(TriSBn)

法律信息

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

象形图

Corrosion

警示用语:

Danger

危险声明

危险分类

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

储存分类代码

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


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